Control board device for machine tool



FIG. 1 is a front view of an embodiment of a control board device for machine tool showing our new design;

FIG. 2 is a back view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof.

The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a control board device for machine tool, as shown and described. 